diff --git a/src/Ombi/webpack.config.vendor.ts b/src/Ombi/webpack.config.vendor.ts
index 4732207c6..4dec9177d 100644
--- a/src/Ombi/webpack.config.vendor.ts
+++ b/src/Ombi/webpack.config.vendor.ts
@@ -79,6 +79,7 @@ module.exports = (env: any) => {
         },
         plugins: [
             new webpack.ProvidePlugin({ $: "jquery", jQuery: "jquery", Hammer: "hammerjs/hammer" }), // Global identifiers
+            new webpack.ContextReplacementPlugin(/\@angular(\\|\/)core(\\|\/)esm5/, path.join(__dirname, './client')), // Workaround for https://github.com/angular/angular/issues/20357
             new webpack.ContextReplacementPlugin(/\@angular\b.*\b(bundles|linker)/, path.join(__dirname, "./ClientApp")), // Workaround for https://github.com/angular/angular/issues/11580
             new webpack.ContextReplacementPlugin(/angular(\\|\/)core(\\|\/)@angular/, path.join(__dirname, "./ClientApp")), // Workaround for https://github.com/angular/angular/issues/14898
             extractCSS,